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HomeMy WebLinkAboutSW8030229_APPROVED PLANS_20040311STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW z6AAq DOC TYPE ❑CURRENT PERMIT L� APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE Zw 4 U YYYYMMDD FRONT VIEW IIN. 10 GA JP WIRE MIN. 12-1/2 GA. U m�m INTERMEDIATE WIRES LL Lu N MN. 1013X t3 BOTTOM WIRE LL 6- MIN. COMPACTED FILL OVER SKIRT' w p �i iv 1' STEEL OR WOOD POST WOVEN WIRE FENCING AS REQUIRED SILT FILTER FABRIC ANCHOR FABRIC SKIRT w/MIN. 4" LONG WIRE STAPLES @ 12" O.C. `FOR REPAIR OF SILT FENCE FAILURES, / USE #57 WASHED STONE IN LIEU OF COMPACTED FILL. F L 9 8.5 0 / SIDE VIEW FL 98.50 NOTES: 1. INSTALL NEW SILT FENCES AS SHOWN ON DRAWING AND AT LOCATIONS NECESSARY TO CONTROL SILTATION OF ADJACENT AREAS. 2. WHERE WOOD POSTS ARE USED, POSTS SHALL BE A MINIMUM OF 3" IN DIAMETER AND 6 IN LENGTH. POSTS SHALL BE CREOSOTE OR PENTACHLOROPENOL TREATED SOUTHERN PINE. 3. WHERE STEEL POSTS ARE USED, POSTS SHALL BE 6 IN LENGTH AND BE OF THE SELF FASTENER ANGLE TYPE. �`� 0 4, WOVEN WIRE FENCING, WHERE REQUIRED (SEE NOTE*6), SHALL CONFORM TO ASTM A116 FOR CLASS 3 GALVANIZING. FABRIC SHALL Q BUl E A MINIMUM OF 32" WIDE AND HAVE A MINIMUM OF 6 LINE WIRES WITH 12" STAY SPACING. THE TOP AND BOTTOM WIRES SHALL of BE 10 GAUGE AND INTERMEDIATE WIRES SHALL BE 12-1/2 GAUGE. WIRE FABRIC SHALLBE FASTENED TO WOOD POSTS WITH NOT LESS (L/ THAN #9 STAPLES 1 12" LONG. / 5. FILTER FABRIC SHALL BE OF NYLON, POLYESTER, PROPYLENE OR ETHYLENE YARN WITH A MINIMUM STRENGTH OF 30 LBJLIN. IN. AND A MINIMUM OF 85% FILTERING EFFICIENCY. FABRIC SHALL CONTAIN ULTRAVIOLET INHIBITORS AND STABILIZERS. QI 8. IF FABRIC FILTER IS USED WITH A STRENGTH OF 50 LB.ILIN. IN. OR GREATER, AND THE POST SPACING (S) DOES NOT EXCEED 6, WOVEN r WIRE FENCING IS NOT REQUIRED. OTHERWISE, WOVEN WIRE FENCING IS REQUIRED, AND POST SPACING SHALL NOT EXCEED Sr. TEMPORARY SILT FENCE QPP 4ZIT= DI AM SECTION A - A Al^r% -r CONTROL STONE SHALL NOT BLOCK OR IMPEDE PIPE FLOW SEE SITE PLAN MIRAFI 60OX FILTER FABRIC OR APPROVED EQUAL NOTE: FILTER FABRIC AND STONE SHALL BE TOED UNDER FLARED END SECTION TO BE PLACED AT ALL PIPE OUTFALL LOCATIONS. ENERGY DISSIPATOR NTS r ITRIFIC TION ritLu� FL 98.20 PROPOSED LABEL LEGEND / TP 99.0 TP 99.3 TOP OF PAVEMENT FL 97.00 DITCH FLOW LINE i BOTTOM STRUCTURE S2a°58'59"W ELEV = 93.00 az.s1' TRsoo.00' ° \ E� LINE 4" NO. 57 STONE LINING- 1 � � FL 97.80 1 I H 8 .00 I / / LU I LL I o GRASSED WALE z X 96.24 / X 95.46 1 o / TRACT TWO � i 1 SMALL PINE TREES, BUSH HOGGED AND SEEDED T.B.M. I I FINISHED FLOOR EL = 100.00 ASSUMED 'IN, GRASS AREA µ/ THERE ARE N WETLAND N ITE E E o s o s ` I F4 95.00 GRAS�'EQ SWAL� �T I } X 9515 o � C' 3 I Cn Lu f co WELL ______9 DRAINAGE AREA LIMITS-­,,,'~� 5 ' SILT FENCE TRACT ONE FL 94.2 12" FL = 93.7 12" Ft- = 93.9 BOTTOM EL - 93.00 WEIR STRUCTURE PR OSED 50 LF - 12" HDPE PIPE -_ 10 L.F. N 12" PVC OU TFALL _ _ _ 12" FL 93.0 IN 92.80 OUT r - - - - - - - - �30,0' RAD. TYP. _ _ - - 500.00, ` - "� - - - EMERGENCY SPILLWAY FL;_9_5.80 LINE _______-__-_-_-_-_-` _ r --_---EXISTING RO_ADSID_E_S_WAL_E_- W� 24"W x 6" D CLASS B RIP -RAP ROOK CONSTRUCTION MATCH EXIST EDGE OF PAVING _ --- A PLY ACROSS POND TOP TO DITCH BOTTOM-EN-TR,4�1,,C _ CITY GARAGE ROAD 60'R,O.w. T _ - 20' PAVED ROAD PLAN VIEW NOT TO SCALE O J o 12" PVC z n 0 �i 12" x p � II w EL = 94.0 3'SO. INTERIOR O O°° INTERIOR OPENING SITE OD°�D 400°00 o°O°O°O° 0000 EL=93.0 1 m °°°°o°°°°°°°n .�/ 1�A FIOAO 133 Cc '3b.,- 1 1/2" ORIFICI 1/4" ALUM. OIL SKIMMER STONE "PLUNGE Pt 3' WIDE BASE, V TOP TOP OF ROCK = 94.0 NO. 57 STONE WEIR TOP VIEW TYP. 1' WIDTH I F, r ii 9 WEIR OPENING BY: TOP STRUCTURE 1 3.0' ELEV = 96.0 TOP OF BANK ELEV = 96.00 WEIR THROAT ELEV = 94.80 1/2" ORIFICE 1/4" ALUM. OIL SKIMMER FL ELEV = 93.50 1/4" ALUM. MESH TRASH 12" PVC DISCHARGE PIPE \� SCREEN. BOLT TO WALL, TYP. 4 PLACES BOTTOM STRUCTURE 1\ ELEV = 93.00 6" THICK w/ W.W.F. REINFORCING 6" CONC. OR 6" CMU UNDISTURBED EARTH -' WEIR FRONT VIEW WEIR SECTIONS N.T.S. T,B = 96.0 T.B = 96.0 1" RUNOFF = 94.60 SEDIMENT 93.50 BOTTOM 93.0 DRY POND SECTION N.T.S. Co O z Vicinity map `�`` � r••r•rrryrrr A� ��i �►..•aFess10. SEAL x 024400 fi :F�CEN'�.• �r��� rl� N l;f, ]iEi5:j1 DRY POND LAYOUT SITE SUMMARY: OVERALL SITE ACREAGE = 1.28 TRACT ONE = 1.28 ACRES, DISTURBED AREA = 1.28 AC. GRAPHIC SCALE VA IES 40 0 20 40 80 160 Jw a a RECEIVED MEN1 LI;AR,�,� ,FlI SWALE 61 EROSION CONTROL MAINTENANCE REQUIREMENTS: 1. CONSTRUCTION ENTRANCE MUST BE MAINTAINED TO PREVENT MUD OR SEDIMENT FROM LEAVING SITE. PERIODIC TOP DRESSING WITH TWO INCH STONE MAY BE REQUIRED. 2. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY AND OPERATION FOLLOWING EVERY RUNOFF PRODUCING RAINFALL, BUT IN NO CASE LESS THAN ONCE EVERY WEEK. ANY NEEDED REPAIRS WILL BE MADE IMMEDIATELY TO MAINTAIN ALL PRACTICES AS DESIGNED. 3. SEDIMENT WILL BE REMOVED FROM BEHIND SEDIMENT FENCE WHEN IT BECOMES ABOUT 0.5 FEET DEEP AT THE FENCE. THE SEDIMENT FENCE WILL BE REPAIRED AS NECESSARY TO MAINTAIN A BARRIER. 4. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY, AND MULCHED ACCORDING TO SPECIFICATIONS IN THE SEEDING SCHEDULE TO MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER. 5. SEDIMENT WILL BE REMOVED FROM THE SEDIMENT TRAP INLET PROTECTION DEVICE WHEN STORAGE CAPACITY HAS BEEN APPROXIMATELY 50% FILLED. GRAVEL WILL BE CLEANED OR REPLACED WHEN THE SEDIMENT POOL NO LONGER DRAINS PROPERLY. 6. THE SEDIMENT BASIN WILL BE CLEANED OUT WHEN THE LEVEL OF SEDIMENT REACHES 2.0 FEET BELOW THE TOP OF THE RISER. GRAVEL WILL BE CLEANED OR REPLACED WHEN THE SEDIMENT POOL NO LONGER DRAINS PROPERLY. ( IN FEET ) 1 inch = 40 ft. SEEDING SCHEDULE 1. ALL DISTUREMD AREAS DUE TO CONSTRUCTION AND ANY SEVERLY ERODED AREAS SHALL BE STABILIZED WITH A PERMANEeNT41RASS COVER. THE SEED SPECIES SHALL BE SELECTED BASED ON THE TYPE OF SOIL PRESENT, SEASONAL CONDITIONS AND OTHER CONSIDERATIONS. AS AN ALTERNATIVE, THE CONTRACTOR MAY USE METHODS AND SCHEDULES MOWN BELOW; HOWEVER, IT IS RECOMMENDED THAT A SPECIALIST BE CONSULTED WITH ATTENTION GIVEN TO SR'S SPECIFIC CONDITIONS, R IL CULTIVATE AREA TO A DEPTH OF 5". q. APPLY AGRICUffURAL LIME AT THE RATE OF 400D LBS. PER ACRE. C. APPLY 10.20-2a'COMMERCIAL FERTILIZER AT THE RATE OF 500 LBS PER ACRE. C. SOW GRASS SEEDS AT THE FOLLOWING RATES: IDRY SOILS (APFUL - SEPTEMBER) WET SOILS (APRIL - SEPTEMBER) KIND RATE PER ACRE KIND RATE PER ACRE BERMUDA GRASS: 30 LBS. BERMUDA GRASS 25 LBS. CENTIPEDE GRASS 10 LBS. BAHIAGRASS 25 LBS. BAHIAGRASS f 30 LBS. CARPET GRASS 25 LBS KOBE LESPEDEZA. 20 LBS ANNUAL RYEGRASS OR ANNUAL RYEGRASS OR GERMAN MILLET 25 LBS. GERMAN MILLET 25 LBS. E. MULCH WITH STRAW AT THE RATE OF 3250 TO 43W LBS PER ACRE. F. ANCHOR STRAW WITH ASPHALT EMULSION TACK COAT APPLIED AT THE RATE IOF 300 GALLONS PER AgRE. 2. WHERE IT IS NDT POSSIBLE TO ESTABLISH A PERMANENT GRASS COVER IN A REASONABLY SHORT PERIOD OF TIME. DUE TO SEASONALCONSIDERARATIO�IS, A TEMPORARY COVER SHALL BE ESTABLISHED. THE TEMPORARY SEED RATE PER ACRE SHALL BE= j WINTER (SEPTEMBER - APRIL) SUMMER (MAY - AUGUST) ANNUAL RYEGRASS 50 LBS. GERMAN MILLET 50 LBS. TALL FESCUE 1 50 LBS. TEMPORARY UDVERS SHALL NOT ELIMINATE THE REQUIREMENT FOR PERMANENT GRASS COVER. WHERE THE SEASON OR OTHEP COODITIONS ARE WA' SUITABLE FOR GROWING A TEMPORARY EROSION RESISTANT COVER, MULCH MAY BE APPLIED; HO1iFEVER, MULCH USED ALONE SHALL NOT BE ALLOWED. A TEMPORARY OR PERMANENT yAGETATIVE COVEIA SHALL BE ESTABLISHED AS SOON AS CONDITIONS ARE FAVORABLE. 3. TOPSOIL $HALL BE USED OVER UNFAVORABLE $OIL CONDITIONS FOR SUCCESSFULL ESTABLISHMENTOF VEGETATIVE COVER. 4. IRRIGATE AS NECESSARY TO OPTIMIZE PLANT GROWTH. �-A1_4� G,0M%jiSS10N WATEJAN 0 9 2004 Qliz R QUALTTk N.T.S. l! AMC( , zct-4- DWe PROD # CONSTRUCTION SEQUENCE: I. CONTRACTOR TO NOTIFY N.C. LAND QUALITY SECTION, REGIONAL OFFICE IN WILMINGTON,(910) 395-3900, PRIOR TO BEGINNING CONSTRUCTION. >. CONSTRUCT TEMPORARY CONSTRUCTION ENTRANCE. 3. INSTALL ANY EROSION CONTROL MEASURES INCLUDING AT STAGING AREA(S). I. CLEAR ITE BEGIN GRADING AND EXCAVATION AND PIPE LAYING 3. INSTALL SEDIMENT AND EROSIONITURBIDITY MEASURES AS SHOWN, AS CONSTRUCTION PROGRESSES. AT THE END OF EACH DAY, EROSION CONTROL DEVICES MUST BE IN PLACE, AS DEPICTED ON THE PLANS, UP TO THE CURRENT END OF DISTURBED AREA. 3. IMMEDIATELY UPON PIPE INSTALLATION, ALL DISTURBED AREAS ARE TO BE LEVELED OUT, SEEDED, AND MULCHED AS OUTLINED ON SHEET 21. DISTURBED AREAS ARE NOT TO LAY EXPOSED LONGER THAN 15 DAYS. 7. MAINTAIN ALL TEMPORARY MEASURES UNTIL PERMANENT AND UNIFORM VEGETATION IS ESTABLISHED. 3. CONTRACTOR SHALL CLEAN AND RESTORE TO PRE -CONSTRUCTION CONDITIONS ANY AREAS OUTSIDE THE PROJECT LIMITS THAT MAY INADVERTANTENTLY BE DAMAGED DUE TO THE FAILURE OF THE EROSION MEASURES. 3. REMOVE THE REMAINING TEMPORARY EROSION CONTROL MEASURES UPON APPROVAL BY THE N.G. LAND QUALITY SECTION. EROSION CONTROL NOTES: I - ALL CONSTRUCTION ACTIVITIES SHALL BE PERFORMED IN COMPLIANCE WITH THE SEDIMENTATION POLLUTION CONTROL ACT OF 1973. ?. ALL LAND DISTURBING ACTIVITIES ARE TO BE PLANNED AND CONDUCTED $O AS TO LIMIT EXPOSURE OF BARE EARTH FOR THE SHORTEST POSSIBLE TIME. 3. ALL DISTURBED AREAS SHALL BE STABILIZED BY THE PLANTING AND ESTABLISHMENT OF PERMANENT AND UNIFORM GROUND COVER. t. TEMPORARY CONSTRUCTION STAGING AREAS SHALL HAVE ADEQUATE SEDIMENT AND EROSION CONTROL MEASURES INSTALLED TO PREVENT OFF SITE SEDIMENTATION, AND SHALL BE BE SEEDED AS NECESSARY TO BRING THE SITE BACK TO ITS NATURAL STATE UPON COMPLETION OF THE PROJECT. S. SEDIMENT AND EROSIONITURBIDITY CONTROL MEASURERS SHALL BE INSPECTED AFTER EACH HEAVY RAINFALL TO INSURE THEY ARE FUNCTIONAL AND IN GOOD WORKING CONDITION. SEDIMENT DEPOSITION ACCUMULATION TO BE PERIODICALLY REMOVED TO MAINTAIN UNIT EFFECTIVENESS. 3. OVER THE DURATION CF THE PROJECT, THE OWNER'S REPRESENTATIVE SHALL MAKE PERIODIC AND UNSCHEDULED INSPECTIONS TO EVALUATE THE EFFECTIVENESS OF ALL EROSION CONTROL MEASURES. IF EROSION OCCURS, THE OWNER SHALL NOTIFY THE CONTRACTOR TO TAKE ADEQUATE STEPS TO REMEDY THE SITUATION. 7. CULVERTS, DITCH -LINES, OR RIP -RAP DISTURBED BY THIS CONSTRUCTION WILL BE REPLACED OR REPAIRED BY THE CONTRACTOR TO AN EQUAL OR BETTER CONDITION TO THAT PRIOR TO DISTURBANCE. KENNETH L. CLARK, P.E. P.O. BOX 2316, WHITEVILLE, N.C. 28472 PHONE 910-646-4320 IREV.I DESCRIPTION I BY I DATE 1. ADD DRY POND CHANGES AND GRASSED SWALES I SBG 1 27 DEC 03 STORMWATER PLAN DRAWN BY: SBG CHECKED BY: KLC DALE RICHARDSON PROPERTY SCALE: 1 " = 40' BOILING SPRINGS LAKES. NORTH CAROLINA DATE: 27 AUG 03 JOB NUMBER ISHEET 733 EDEN DRIVE SOUTHPORT, N.C. 28461, 910-520-2655 , ':--,-rT J � �.� ! 1 OF 1 Q